17.10 - Example: Function Mapping Definition Using EXTERNAL SECURITY Clause for JSON Data Files - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Operators and User-Defined Functions

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Release Date
July 2021
Content Type
Administration
Programming Reference
Publication ID
B035-1210-171K
Language
English (United States)

This statement defines the function mapping READ_NOS_json_fm for the READ_NOS table operator to query JSON data files. The function mapping includes the authorization DefAuth and a return type of NOSREAD_RECORD.

CREATE FUNCTION MAPPING READ_NOS_json_fm
  FOR READ_NOS
  EXTERNAL SECURITY DEFINER TRUSTED DefAuth
  USING
    LOCATION('/S3/td-usgs-public.s3.amazonaws.com/JSONDATA'),
  RETURNTYPE('NOSREAD_RECORD') ;